Sig Sauer builds this factory magazine (part no. MAG-MOD-F-43-10) for the full-size P320 and P250, holding 10 rounds in a blued steel body sized for both .40 S&W and .357 SIG. As a reduced-capacity option for the full-size frame, it’s a common choice for shooters in states with magazine capacity limits, or simply as a spare that matches a lower-capacity carry configuration. Manufactured to Sig’s own factory tolerances, it feeds and seats exactly as intended. For Sig Sauer P320 and P250 owners, this handgun magazine is a dependable factory-correct spare.

Key Specifications

• Chambered for .40 S&W and .357 SIG, sharing one magazine geometry.
• Holds 10 rounds, a reduced-capacity option for the full-size frame.
• Fits the Sig Sauer P320 and P250 full-size frames.
• Finished in blued steel for a traditional, corrosion-resistant body.

Frequently Asked Questions

Why choose a 10-round magazine for a full-size pistol? It’s a common choice for shooters in states with reduced magazine capacity limits.

Does one magazine work for both .40 S&W and .357 SIG? Yes, both cartridges share the same case head dimensions and run through this same magazine.

Buy the Sig Sauer P320/P250 10-Round .40 S&W/.357 SIG Magazine

A factory-correct spare keeps a full-size P320 or P250 topped off and ready. Order it from our Lubbock, Texas gun shop for fast, insured shipping.